I get reminded of that a lot, when taking the train. Especially on the ICE. Seeing people on the platform crying, hugging, waving their goodbyes, starting with small kids, to teens in love, married couples to seniors… they all have the sadness in common, the sadness of knowing how it will hurt to miss this person getting on that train.
To me, occurences like this are always reminders of the many times I have had to say goodbye. Usually at airports — a few times at train stations. Going to places of mass transportation has always this sad vibe of leaving or being left. Oddly enough the “seeing each other again” memories don’t manage to equalize the melancholy. Why is that?